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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 159,127 $ 275,988
Accounts receivable 35,975 40,080
Inventory 121,717 81,596
Prepaid expenses and other current assets 15,407 5,930
Total current assets 332,226 403,594
Property, plant, and equipment, net 115,299 47,474
Operating lease right-of-use assets 14,570  
Other non-current assets, net 5,911 855
Total assets 468,006 451,923
Current liabilities:    
Accounts payable 53,071 26,923
Wages payable 2,843 1,768
Accrued bonus 57 4,129
Current portion of operating lease liabilities 3,095  
Accrued expenses and other current liabilities 4,830 3,805
Short-term borrowings under revolving credit facility 25,000 0
Short-term borrowings under revolving credit line and bank term loan 0 11,000
Short-term finance lease liabilities 71  
Short-term finance lease liabilities   72
Total current liabilities 88,967 47,697
Long-term liabilities:    
Long-term portion of bank term loan, net 0 14,637
Equipment loan, net 0 4,932
Operating lease liabilities, net of current portion 11,793  
Finance lease obligations and other long term liabilities 149 567
Total long-term liabilities 11,942 20,136
Commitments and Contingencies (Note 11)
Stockholders’ equity:    
Preferred stock, par value $0.0001 per share—500,000 shares authorized, none issued and outstanding 0 0
Common stock, par value $0.0001 per share—500,000,000 shares authorized at December 31, 2020 and 2019; 62,820,351 and 61,576,494 shares issued and outstanding at December 31, 2020 and 2019, respectively 6 6
Additional paid-in capital 560,210 526,199
Accumulated deficit (194,867) (142,115)
Accumulated other comprehensive income 1,748 0
Total stockholders’ equity 367,097 384,090
Total liabilities and stockholders’ equity $ 468,006 $ 451,923